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(No Model.) 3 SheetsSheet 1.

E. W. PEEEY.

MAOHINERY EOE POLISHING SHEET METAL ARTICLES. No. 410,851. Patented SephlO, 1889.

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(No Model.) 3 Sheets-Sheet 2.

P. W. PERRY. v MACHINERY FOR POLISHING .SHEET METAL ARTICLES. No. 410,851. Patented Sept. 10, 1889 as Irwanior Fran/7o WIorr 0M. b his dawnin dfW//%m,

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(No Model.) 3' SheetsSheet 3.

P. W.. PERRY.

MACHINERY FOE POLISHING SHEET METAL ARTICLES. v N0. 410,851. Patented Sept. 10, 1889.

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UNITED STATES PATENT OFFICE.

FRANK. WV. PERRY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE HERO FRUIT JAR COMPANY, OF SAME PLACE.

MACHINERY FOR POLISHING SHEET-METAL ARTICLES.

SPECIFICATION forming part of Letters Patent No. 410,851, dated September 10, 1889. Application filed February 15, 1889- Serial No. 360,022. (No model.)

To all whom it may concern:

Be it known that I, FRANK. W. PERRY, a citizen of the United States, and a resident of Philadelphia; Pennsylvania, have invented certain Improvements in Machinery for Polishing Sheet-Metal Articles, of which the following is a specification.

The object of my invention is to construct a machine for rapidly and effectively polish- 1o ing sheet-metal caps and other small articles of sheet-metal ware; and this object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in whichr 5 Figure 1 is a longitudinal section of the polishin g machine constructed in accordance with my invention. Fig. 2 is a plan View of the same, with the upper inclosing-case shown.

in section. Fig. 3 is a transverse section on the line 1 2, Fig. 2; and Figs. 4 and 5 are detached views, on an enlarged scale, of partof the machine.

A represents a longitudinal frame mounted upon suitable legs a and having at opposite z 5 ends bearings for drums B B, around which passes an endless belt D, carrying a series of work-holding chucks b, of the character described hereinafter, the bearings for the drums being carried by slides d, adjustable by means of set-screws d, so as to keep the belt always tight. Each of the chucks 1) consists of a plate f, secured to the belt D and having a sleeve f, which serves as the bearin for the hollow shaft 9, carrying the head g of the 3 5 chuck, the latter being externally shaped to conform to the internal shape of the article to be polished, and the shaft g being confined longitudinally to the sleeve f by means of a collar g at the inner end of said shaft, but

being free to turn in said sleeve. In the head g of the chuck are a series of radial recesses 1', in which are adapted to slide spring-pins i,

the outer ends of which extend beyond the outer face of the chuck when said pins are projected, the pins having at their inner ends enlarged heads 1', for the action of the springs i To the hollow shaft g of the chuck is adapted a rod h, which has a conical head h,

adapted to a central conical opening in the chuck, the lower end of the stem having a collar 77, upon which acts a spring k tending to depress the rod and cause the conical head h of the same to act upon and project the springpins "6', guided in the head of the chuck. 011 the shaft of each of the drums B, however, is a wheel or disk F, and as the chucks are being carried around each drum the inner ends of the rods h are acted upon by said wheel or disk and said rods are projected, so as to raise the conical heads of the same and permit the retraction of the pins 2" by their springs. The sheet-metal caps or other articles to be polished can therefore be readily applied to or delivered from the chucks as the latter are passing around the drums at the ends of the machine, the caps or other arti oles being firmly secured to the chucks by the spring-pins t" as soon as the rods h have passed from under the control of the wheel or disk F. As the chucks and the caps carried thereby move forward with the belt, they enter a boX or casing G, in which are a series of vertical brushes H and horizontal brushes I, two of each of these brushes being shown in the present instance, although one of each may in some cases suflice, or more than two of each may be 7 used in other cases. As the caps are carried past the brushes, the sides of the same are bufied or polished by means of the horizontal brushes, and the tops of the caps are subjected to similar treatment by the vertical brushes, so that the caps issue from the opposite end of the box G in a highly-polished condition and are discharged from the chucks into a suitable receptacle as the spring-pins 8 5 are retracted, when the chucks pass around the drum B at the delivery end of the machine. The shaft of oneof the brushes H, and also of one of the brushes I, has a pulley 'm, which receives a belt m from an adjacent o driving-pulley m and on each of said shafts is another pulley n, which, by means of the belt at, drives a like pulley n on the shaft of the other brush H or I, the bearings of the various brushes being carried by slides 10, adjustable by means of a handled set-screw 19',

so that the brushes can be readily adjusted to suit caps or other articles of different sizes, and in order to prevent deflection of the belt D when the brushes are acting upon the caps 10o or other articles carried by the chucks, said belt is supported and laterally confined by guides s on the frame A, as shown in Fig. 5}.

Although I prefer to use the spring-pin chuck, it may in some cases be dispensed with and a plain chuck employed.

Having thus described myinvention, I claim and desire to secure by Letters Patent 1. The combination of an endless belt having a series of independent work-holding chucks, means for traversing said belt, and rotating brushes for acting 011 the articles on the chucks as the latter are carried past the brushes by the belt, substantially as speeilied.

2. The combination of the rotating brushes, the endless belt havin a series of chucks with rotatable Work-holding heads, and means for traversing said belt, substantially as specified.

3. The combination of the endless belt, the drums therefor, the chucks having springholding pins, a rod having an expander for said pins, and a presser for operating the said red as it passes around the opposite beltdrums, substantially as specified.

t. The combination of the endless belt and its work-holding chucks with the vertical and horizontal rotary brushes and adjustable bearings tor the shafts of said brushes, substantially as specified.

5. The combination of the two sets of retatin g brushes with the endless belt carrying the work-holding chucks, means for traversing the belt, and a frame having guides for vertically supporting and laterally confining said belt, substantially as specified.

In testimony WhereofI have sign ed my name to this specification in the presence of two subscribing witnesses.

FRANK. \V. PERRY.

\Vitnesses:

WILLIAM fl). CONNER, ll-ARRY SMITH. 

